Ilha de Âncora offers a diverse underwater topography featuring reefs, walls, caverns, and drop-offs. The site is suitable for intermediate divers, with depths ranging from 4 to 15 metres. Access to the site is by boat only. Visibility at the location varies between 5 and 20 metres, and water temperatures typically range from 21 to 24 degrees Celsius. Divers should be aware of sharp coral present in the area. Local facilities include equipment rental, guided tours, and air fills to support diving activities.

Ilha dos Gravatas is a marine dive site located 15 kilometres from the shore of Ilha de Âncora. This site features a varied topography including reefs, walls, and small caves suitable for intermediate divers. The site is accessed exclusively by boat and is known for strong currents, with visibility ranging from 5 to 20 metres. Depths vary between 6 and 30 metres, with an average depth of 15 metres. Divers should be aware of hazards including deep water, jellyfish, sharp coral, and strong currents. Night diving is available at this location, and local facilities provide air fills, equipment rental, and guided tours.

Ilha de Âncora is a diverse marine site located 11 kilometres from the shore near Armação dos Búzios. The topography features a combination of reefs, walls, and caves, making it suitable for intermediate divers. The site reaches depths between 6 and 30 metres, with an average depth of 15 metres. Divers access the site by boat, where they may encounter moderate currents and visibility ranging from 10 to 30 metres. Species recorded around this area include French Angelfish, Spotted Moray, Cushion Sea Star, Banded Coral Shrimp, Caribbean Ocean Surgeonfish, various wrasses, arrow crabs, and bigeyes. Night diving is available at this location, with typical dives lasting approximately 45 minutes.

Alagados is a submerged island formation located off Ilha de Âncora, Brazil. This wall dive is suited for advanced divers due to its depth range of 15 to 50 metres and variable currents. Access is by boat, with a controlled descent along a line to the peak of the formation at 15 metres. Given the significant depth and potential for strong currents, this site is recommended for experienced divers with technical or deep diving certifications. Water temperatures at the site remain consistent, ranging between 20C and 22C throughout the year.

Praia do Forno in Armação dos Búzios is a reef site accessible from the shore. The area features rocky headlands and depths ranging from 2 to 8 metres, with an average of 5 metres. Divers and snorkellers should be aware of mild currents and potential boat traffic. Water temperatures typically range between 21C and 24C, though cold water due to upwelling is common. Facilities at the beach include parking, toilets, showers, equipment rental, a cafe, and boat charter services. Species recorded around this area include French Angelfish, Caribbean Ocean Surgeonfish, Gray Angelfish, Arrow Crab, wrasses, sea stars, crabs, bigeyes, cornetfish, bream, goatfish, and various snails.

Praia da Foca in Armação dos Búzios is a secluded reef site featuring a small beach nestled between high rock formations. This natural pool environment is suited for intermediate snorkelers, offering depths ranging from 1 to 8 metres with an average of 4 metres. Conditions vary, with visibility typically between 5 and 15 metres and mild currents. Access is via the shore, and the site is best suited for those comfortable navigating surf. Water temperatures remain consistent, ranging from 22C to 25C throughout the year. A cafe is available nearby for visitors. The site provides a quiet, contained area for snorkeling away from larger crowds.

João Fernandes in Armação dos Búzios is a reef and artificial reef site accessible from the shore. The site features a series of underwater statues, including a mermaid and a shark, and a natural nursery area in the right corner. Depths range from 2 to 12 metres, with an average of 5 metres, making it suitable for beginners. Conditions include mild currents and visibility between 3 and 10 metres. Water temperatures range from 22C to 25C throughout the year. Species recorded around this area include French Angelfish, Caribbean Ocean Surgeonfish, Gray Angelfish, Arrow Crab, wrasses, crabs, sea stars, bigeyes, cornetfish, bream, goatfish, and snails. Hazards include boat traffic and sharp coral.

Praia Azeda is a shallow reef dive in Armação dos Búzios, Brazil, featuring depths between 2 and 10 metres with an average of 5 metres. This site is suitable for beginner divers, offering a comfortable experience with mild currents and visibility ranging from 5 to 15 metres. Water temperatures remain between 21 and 24 degrees Celsius, though local upwelling can occasionally cause colder conditions. Divers enter directly from the shore. While toilets are available on site, there are no changing facilities. Early morning dives are recommended to avoid surge activity that may stir up sediment near the shore.